Railroad cattle-guard.



No. 767,748. PATENTED AUG. 16, 1904, G. W. GWYN, J. TRAYLOR & R.ROBBINS.

RAILROAD CATTLE GUARD.

APPLICATION FILED AUG. 17, 1903.

2 SHEETSSHEET 1.

N0 MODEL.

Home

NVE/VTORS No. 767,748. PATENTED AUG. 16, 1904. G. W. GWYN T. TRAYLOR&'H. R. ROBBINS.

RAILROAD CATTLE GUARD.

APPLICATION FILED AUG. 17, 190 3.

2 SHEETS-SHEET 2.

10 MODEL.

lNVE/V 7085 Q 240 I 9. "I a;

tlorney UNITED STATES Patented August 16, 1904.

PATENT QFFICE.

GEORGE W. GVVYN, JOPHIS TRAYLOR, AND HAMAN R. ROBBINS, OF SMYRNA,TENNESSEE.

RAILROAD CATTLE-GUARD.

SPECIFICATION forming part of Letters Patent No. 767,748, dated August16, 1904.

Application filed August 1'7, 1903.

To all whom, it may con/00772 I Be it known that we, GEORGE 'W. GwYN,JorHIs TRAYLOR, and HAMAN R. ROBBINS, of Smyrna, in the'county ofRutherford and State of Tennessee, have invented certain new and usefulImprovements in Railroad Cattle- (Jruards; and we do hereby declare thefollowing to be a full, clear, and exact description of the invention,such as will enable others skilled in the art to which it appertains tomake and use the same.

Our invention relates to an improved railroad cattle-guard, the objectof the invention being to provide improvements of this character whichwill be operated by the weight of an animal, which will be absolutelysure in their operation, not liable to get out of order, simple inconstruction, and comparatively cheap to manufacture.

With this object in view the invention consists in certain novelfeatures of construction and combinations and arrangements of parts, aswill be more fully hereinafter described, and pointed out in the claims.

In the accompanying drawings, Figure 1 is a top plan view illustratingour improvements. Fig. 2 is a view in section showing the gate open.Fig. 3 is-a similar view showing the gate closed. Fig. 1 is a view insection on the line m w of Fig. 2, and Fig. 5 is a View in section onthe line y 3/ of Fig. 3.

1 represents the rails of a track supported on ordinary ties 2, and 3 3represent the end posts of a fence on opposite sides of the track.

4 represents a tubular shaft supported beneath rails 1 and mounted inany suitable bearings in cross-ties 5. Metal rods or pickets 6 passthrough openings in tube 4: and are removably secured in place by nuts,hence permitting them to be readily replaced in the event of injury toany of them. Gear-Wheels 7 are secured on tube 4 by means of setscrewsor otherwise, and short racks 8 mesh therewith. These racks 8 arepreferably made on L-shaped castings, one member of which is toothed toengage the gear-wheels 7, and the other member has slots 9 to receivebolts 10, securing them to bars 11, said slots Serial No. 169,752. (Nomodel.)

9 and bolts 10 permitting adjustment of the racks, so that they willproperly mesh with the gears. The bars 11 are hinged at one end on a tie2 and are connected by yoke-bars 12. These yoke-bars are bent to passfreely beneath rails 1 and support platforms 13 and 1 1, the formeroccupying space between rails 1 and the latter disposed outside of therails. A coiled spring 15 is located under the platform 13 and seated ina socket in a tie 2 to normally hold the platforms elevated and the gatein its down or open position.

The operation of our improvements is as follows: When an animal steps oneither platform, (13 or 145,) its weight will depress the platforms andbars 11, causing the downward movement of racks 8 and consequentrotation of the gear-wheels and tube 4 to bring the gate to a verticalclosing position, preventing the passage of the animal between posts 3,and as soon as the weight is removed from the platform spring 15,assisted by the weight of the gate, will compel the gate to return toits closed position and the platforms to rise to their set position.

A great many different varieties of platform may be employed instead ofthe solid platform shown, and a great many changes might be made in thegeneral form and arrangement of the parts described without departingfrom our invention, and hence we do not restrict ourselves to theprecise details set forth, but consider ourselves at liberty to makesuch slight changes and alterations as fairly fall within the spirit andscope of our invention.

Having fully described our invention, what we claim as new, and desireto secure by Letters Patent, is

1. In a railroad cattle-guard, the combination with a hinged gate andgear-wheels secured to the hinged part of the gate, of bars disposed atright angles to the gate and pivotally supported at their outer ends,racks carried by the inner ends of said bars to mesh with saidgear-wheels, and a platform connected with said bars.

2. In a railroad cattle-guard, the combina- I tion with a hinged gateand gear-wheels secured to the hinged part of the gate, of bars disposedat right angles to the gate and pivotally supported at their outer ends,racks at the inner ends of said bars to mesh With said gear-Wheels,tranverse yokes secured to said bars, and a platform secured to saidyokes.

3. In a railroad cattle-guard, the combination With a hinged gate, andgear-Wheels secured to the hinged part of said gate, of bars pivotallysupported at their outer ends, racks adjustably secured to the innerends of said bars to mesh With said gear-Wheels, and a platformconnected with said bars.

4:. In a cattle-guard, the combination With a hinged gate andgear-Wheels secured to the hinged part of said gate, of parallel barspivotally supported at their outer ends, racks at the inner ends of saidbars to mesh With said gear-Wheels, transverse yokes secured to saidbars and projecting laterally beyond the same, a platform secured tosaid transverse yokes between the bars and platforms secured to saidtransverse yokes laterally beyond said bars.

In testimony whereof We have signed this specification in the presenceof tWo subscribing Witnesses.

G. W. GWYN. J OPHIS TRAYLOR. H. R. ROBBlNS.

WVitnesses:

S. E. HAGEN, U. H. GAMBILL.

